remove slave server from master?

My existing config is a master server + slave. The slave node has been offline for several weeks due to failed hardware, which occurred shortly after installation. I have now prepared a new server to act as slave, which uses the same host name and IP address as the earlier.

I don't want to confuse the master server and so was thinking I should first remove references to the old slave before installing the new. How can I do this safely?

Is it okay to simply delete the relevant entry in the 'server' table? Are there any other actions I should perform to clean things up before pairing the new slave node?

1) Delete all websites, mail domains and dns zones that belong to the server which shall be removed. Wait until the jobqueue has cleared. This will remove the items inside ispconfig and on the slave server. This has to be done on traditional server setups, not mirroring setups!

2) Login to the slave server and remove the server.sh cronjob from root crontab.

4) Delete the record of this server in the "server" database table of the ispconfig DB on the master.